No.1 Worldwide in Outdoor Advertising JCDecaux is the number 1 worldwide in outdoor advertising and self-service bicycle scheme. It has been the only international player focused exclusively on outdoor advertising, developing 3 areas of business: street furniture, transport advertising and billboard advertising. JCDecaux, who invented the concept of advertising street furniture in 1964, has been a constant source of innovation for the past 50 years. It all started with a simple idea: to provide a range of services financed by advertising for the benefit of cities, residents and travellers. With 13,030 employees, the Group is present in more than 75 countries around the world.